Magnetic recording disc cartridge with disc cleaning means

Details Magnetic recording disc cartridge with disc cleaning means Magnetic recording disc cartridge with disc cleaning means

1981-06-01

1983-07-05

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2302

Patent

active

043921701

ABSTRACT:
A magnetic recording disc cartridge so called a floppy disc comprising a cover jacket member enclosing a magnetic recording disc with a cleaning sheet disposed between the inside face of the cover jacket member and the magnetic recording disc, including thermally bonding portions for bonding the sheet member and the cleaning sheet, in which the bonding portions are a plurality of dots formed around the peripheral portion of a central window along a plurality of lines radially extending from the peripheral edge of the central window for a predetermined distance.

REFERENCES:
patent: 3668658 (1972-06-01), Flores
patent: 4251843 (1981-02-01), Masuyama et al.
patent: 4263634 (1981-04-01), Chenoweth et al.
patent: 4354213 (1982-10-01), Martinelli

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